Properties of Phonolite lan Coquina
ukuran gandum
grained nggoleki
coarse grained
rengat
conchoidal kanggo ora rata
ora duwe aturan baku
porosity
kurang keropos
Highly keropos
luster
greasy kanggo kurang
kurang kanggo vitreous kanggo submetallic
tartamtu gravitasi
2.6
1.10-2.24
transparan
tembus kanggo opaque
opaque
Kapadhetan
2.6 g / cm 3
2.8-2.9 g / cm 3
resistance
tahan panas, impact tahan, nyandhang tahan
tahan panas, impact tahan, meksa tahan, nyandhang tahan